KMC MTB Narrow-Wide 104 BCD Chainring Chainring, CNC Machined AL7075-T6 Aluminium, 9-12 Speed & Gravel Drivetrains

Narrow-Wide Tooth Technology - Features an advanced narrow-wide tooth profile designed for precise chain engagement and superior chain retention on rough and technical terrain Premium AL7075-T6 Aluminium Construction - Precision CNC-machined from high-strength AL7075-T6 aluminium, delivering an excellent balance of lightweight performance, stiffness and durability Aurora PVD Surface Treatment - The distinctive Aurora PVD coating reduces friction while improving scratch resistance, corrosion protection and overall product lifespan 104BCD 4-Bolt Compatibility - Designed for cranksets using a 104mm BCD 4-arm spider, making it ideal for upgrading many MTB and gravel drivetrains Compatible with 9-12 Speed Systems - Suitable for a wide range of modern 9, 10, 11 and 12-speed drivetrains using 1/2" x 11/128" chains